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    body { background-color: black; }
              describe('Generators', function() {
  it('do we have to check for iterator.next().done?', function(done) {

    runGenerator(function* main() {
      var result1 = yield GetAsyncMethod1();
      var result2 = yield GetAsyncMethod2();
      console.log("completed running");



function GetAsyncMethod1() {
  return new Promise(function(resolve, reject) {
    setTimeout(function() {
      resolve("returned values from GetAsyncMethod1");
    }, 30)

function GetAsyncMethod2() {
  return new Promise(function(resolve, reject) {
    setTimeout(function() {
    }, 30)

function runGenerator(g) {
  var it = g(),

  // asynchronously iterate over generator
  (function iterate(val) {
    ret = it.next(val);

    if (!ret.done) {
      // poor man's "is it a promise?" test
      if ("then" in ret.value) {
        // wait on the promise
      // immediate value: just send right back in
      else {
        // avoid synchronous recursion
        setTimeout(function() {
        }, 0);
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